Kosmos-1
| Function | Orbital carrier rocket |
|---|---|
| Manufacturer | Yangel |
| Country of origin | Soviet Union |
| Size | |
| Height | 26.3 metres (86 ft) |
| Diameter | 2.4 metres (7.9 ft) |
| Mass | 107,500 kilograms (237,000 lb) |
| Stages | 2 |
| Capacity | |
| Payload to LEO | 1,400 kilograms (3,100 lb) |
| Launch history | |
| Status | Retired |
| Launch sites | Site 41/15, Baikonur |
| Total launches | 8 |
| Successes | 7 |
| Failures | 1 |
| First flight | 18 August 1964 |
| Last flight | 28 December 1965 |
| First stage - R-14 | |
| Engines | 1 RD-216 |
| Thrust | 1,740 kilonewtons (390,000 lbf) |
| Specific impulse | 292 sec |
| Burn time | 130 seconds |
| Fuel | HNO3/UDMH |
| Second stage - S3 | |
| Engines | 1 11D49 |
| Thrust | 156 kilonewtons (35,000 lbf) |
| Specific impulse | 303 sec |
| Burn time | 375 seconds |
| Fuel | HNO3/UDMH |
The Kosmos-1 (GRAU Index: 65S3, also known as Cosmos-1) was a Soviet carrier rocket, derived from the R-14 missile, which was used to orbit satellites in 1964 and 1965. It served as an interim, and was quickly replaced by the Kosmos-3. Eight were flown, and all launches occurred from Site 41/15 at the Baikonur Cosmodrome.
Initial development was authorised in October 1961, leading to a maiden flight on 18 August 1964, carrying three Strela satellites. Strela-1 satellites were flown on seven flights, with three satellites on each of the first four flights, and five satellites on the next three flights. The eighth, and final, flight carried a single Strela-2 satellite. All flights were successful except the second.
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